Re: submission-relay: sends EHLO after a successful AUTH

Use dovecot's submission service instead. Submission proxy to mta directly is not supported.

See [1]https://doc.dovecot.org/latest/core/config/submission.html#submission-server

Aki

 On 21/10/2026 14:26 EEST Simonas Kazlauskas via dovecot
 <[2]dovecot@dovecot.org> wrote:


 Hello,

 I have been migrating away from mailbox and notmuchto dovecot to archive
 my
 mail and it works great for this purpose so far! I figured out if I'm
 proxying
 IMAP, why not SMTP as well?

 Unfortunately that part did not work as well, at least not Migadu that I
 use
 as my mail service. I would always get back a


   530 5.7.0 authentication required.

 from the server when issuing `MAIL FROM` even though the logs were
 showing an
 apparent success in authenticating. From what I can tell the issue turns
 out
 to be the fact that submission relay sends a fresh EHLO after it has
 already
 successfully authenticated, resetting the state of the connection and
 dropping
 the authentication it just worked to set up. I verified the theory
 issuing
 commands directly to Migadu via `openssl s_client`:

 EHLO, AUTH PLAIN, EHLO, MAIL FROM -> 530
 EHLO, AUTH PLAIN, MAIL FROM -> 250

 Is it me holding dovecot wrong or a genuine bug? A sanitized log of one
 tx is
 appended below.

 Thank you,
 S.

 ---

 master: Dovecot v2.4.5 (0cbb641e3e) starting up for imap, submission
 ...
 submission([3]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Server accepted connection (fd=9)
 submission([4]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Connection created
 submission([5]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: Connection created
 submission([6]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: Disconnected
 submission([7]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: Looking up IP address
 submission([8]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: Performing asynchronous DNS
 lookup
 submission([9]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: conn
 unix:/run/dovecot2/dns-client: dns(smtp.migadu.com): Lookup started
 submission([10]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: conn
 unix:/run/dovecot2/dns-client: Connecting
 submission([11]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: conn
 unix:/run/dovecot2/dns-client (pid=3388288,uid=0): Client connected
 (fd=15)
 submission([12]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: conn
 unix:/run/dovecot2/dns-client (pid=3388288,uid=0): Sending version
 handshake
 submission([13]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Connection started
 submission([14]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Sent: 235 2.7.0 Logged in.
 submission([15]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: conn
 unix:/run/dovecot2/dns-client (pid=3388288,uid=0): dns(smtp.migadu.com):
 Lookup successful after 4 msecs
 submission([16]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: DNS lookup successful; got 6
 IPs
 submission([17]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 [1]: Connecting to
 51.210.223.36:465
 submission([18]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Connecting
 submission([19]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Waiting
 for connect (fd=8) to finish for max 0 msecs
 submission([20]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: conn
 unix:/run/dovecot2/dns-client (pid=3388288,uid=0): Disconnected:
 Connection closed (fd=15)
 submission([21]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: conn
 unix:/run/dovecot2/dns-client (pid=3388288,uid=0): Disconnect: deinit
 submission([22]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Client
 connected (fd=8)
 submission([23]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Starting
 SSL handshake
 submission([24]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x10, ret=1: before SSL initialization
 submission([25]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: before SSL initialization
 submission([26]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS write client hello
 submission([27]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1002, ret=-1: SSLv3/TLS write client hello
 submission([28]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1002, ret=-1: SSLv3/TLS write client hello
 submission([29]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1002, ret=-1: SSLv3/TLS write client hello
 submission([30]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS write client hello
 submission([31]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS read server hello
 submission([32]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: TLSv1.3 read encrypted
 extensions
 submission([33]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: Received valid SSL certificate: /C=US/O=Internet
 Security Research Group/CN=ISRG Root X2
 submission([34]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: Received valid SSL certificate: /C=US/O=ISRG/CN=Root YE
 submission([35]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: Received valid SSL certificate: /C=US/O=Let's
 Encrypt/CN=YE1
 submission([36]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: Received valid SSL certificate: /CN=smtp.migadu.com
 submission([37]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS read server
 certificate
 submission([38]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: TLSv1.3 read server
 certificate verify
 submission([39]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS read finished
 submission([40]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS write change cipher
 spec
 submission([41]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1001, ret=1: SSLv3/TLS write finished
 submission([42]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x20, ret=1: SSL negotiation finished
 successfully
 submission([43]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL: where=0x1002, ret=1: SSL negotiation finished
 successfully
 submission([44]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: SSL
 handshake successful
 submission([45]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 greeting from server: 220 smtp.migadu.com ESMTP Service Ready
 submission([46]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Sending
 EHLO handshake
 submission([47]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Submitted with priority
 submission([48]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Sent: EHLO mail.example.com
 submission([49]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Got reply (1/1): 250 smtp.migadu.com Hello mail.example.com
 PIPELINING 8BITMIME ENHANCEDSTATUSCODES CHUNKING AUTH PLAIN LOGIN
 AUTH=PLAIN LOGIN SIZE 52428800 (1 commands pending, 0 commands queued)
 submission([50]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 handshake reply
 submission([51]me@example.com)<3453761><tfS6...>: Warning: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 invalid EHLO response line: Unexpected character in EHLO keyword
 submission([52]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 server capabilities
 submission([53]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Authenticating as [54]me@example.com
 submission([55]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 AUTH: Submitted with priority
 submission([56]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Destroy (0 commands pending, 1 commands queued)
 submission([57]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 AUTH: Sent: AUTH PLAIN <snip>
 submission([58]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 AUTH: Got reply (1/1): 235 2.0.0 Authentication succeeded (1 commands
 pending, 0 commands queued)
 submission([59]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Authenticated successfully
 submission([60]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Sending
 EHLO handshake
 submission([61]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Submitted with priority
 submission([62]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 AUTH: Destroy (0 commands pending, 1 commands queued)
 submission([63]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Sent: EHLO mail.example.com
 submission([64]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Got reply (1/1): 250 smtp.migadu.com Hello mail.example.com
 PIPELINING 8BITMIME ENHANCEDSTATUSCODES CHUNKING AUTH PLAIN LOGIN
 AUTH=PLAIN LOGIN SIZE 52428800 (1 commands pending, 0 commands queued)
 submission([65]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 handshake reply
 submission([66]me@example.com)<3453761><tfS6...>: Warning: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 invalid EHLO response line: Unexpected character in EHLO keyword
 submission([67]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Received
 server capabilities
 submission([68]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Connection ready
 submission([69]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Timeout start
 submission([70]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 EHLO: Destroy (0 commands pending, 0 commands queued)
 submission([71]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Received new command: MAIL
 FROM:<[72]sender@example.com>
 submission([73]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: command MAIL: New command
 submission([74]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: command MAIL: Execute command
 submission([75]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Created
 submission([76]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Start
 submission([77]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Add
 transaction
 submission([78]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 [plug]: Submitted
 submission([79]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: command MAIL: Next to reply
 submission([80]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Timeout stop
 submission([81]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Start
 next transaction
 submission([82]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Connection is ready for transaction
 submission([83]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Sending MAIL command
 submission([84]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 MAIL: Submitted
 submission([85]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 [plug]: Aborted
 submission([86]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 [plug]: Removed from send queue
 submission([87]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 [plug]: Destroy (0 commands pending, 1 commands queued)
 submission([88]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 MAIL: Sent: MAIL FROM:<[89]sender@example.com>
 [90]AUTH=relay@example.com
 submission([91]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Start
 timeout
 submission([92]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Reset
 timeout
 submission([93]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: command
 MAIL: Got reply (1/1): 530 5.7.0 authentication required (1 commands
 pending, 0 commands queued)
 submission([94]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: No
 commands pending; stop timeout
 submission([95]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Got MAIL reply: 530 5.7.0 authentication required
 submission([96]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Abort
 submission([97]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]: Abort
 transaction
 submission([98]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 transaction: Aborted
 submission([99]me@example.com)<3453761><tfS6...>: Error: relay: Server
 requires authentication: 530 5.7.0 authentication required
 submission([100]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Sent: 421 4.3.5 mail.example.com Internal
 error occurred. Refer to server log for more information.
 submission([101]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Disconnected: Internal error occurred.
 Refer to server log for more information. (unfinished MAIL command)
 (state=MAIL FROM)
 submission([102]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Connection state reset
 submission([103]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: command MAIL: Abort
 submission([104]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: command MAIL: Destroy
 submission([105]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Disconnected
 submission([106]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 smtp.migadu.com: SSL alert: close notify
 submission([107]me@example.com)<3453761><tfS6...>: Debug: relay:
 smtp-client: conn smtp.migadu.com:465 (51.210.223.36:465) [1]:
 Disconnected: Connection closed (fd=8)
 submission([108]me@example.com)<3453761><tfS6...>: Disconnected:
 Internal error occurred. Refer to server log for more information.
 (unfinished MAIL command) (state=MAIL FROM) in=36 out=124
 submission([109]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Disconnected: Connection closed (fd=9)
 submission([110]me@example.com)<3453761><tfS6...>: Debug: smtp-server:
 conn 192.168.70.182:50608 [1]: Connection destroy
 submission(3453761): Debug: relay: smtp-client: conn smtp.migadu.com:465
 (51.210.223.36:465) [1]: transaction: Destroy
 submission(3453761): Debug: relay: smtp-client: conn smtp.migadu.com:465
 (51.210.223.36:465) [1]: transaction: Abort
 submission(3453761): Debug: relay: smtp-client: conn smtp.migadu.com:465
 (51.210.223.36:465) [1]: Abort transaction
 submission(3453761): Debug: relay: smtp-client: conn smtp.migadu.com:465
 (51.210.223.36:465) [1]: command MAIL: Destroy (0 commands pending, 0
 commands queued)
 submission(3453761): Debug: relay: smtp-client: conn smtp.migadu.com:465
 (51.210.223.36:465) [1]: Destroy
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