# 사용자 지정 주소로 이메일 전송 실패: "EHLO 후 연결 끊김"

**URL:** <https://meta.discourse.org/t/email-to-custom-address-fails-lost-connection-after-ehlo/333553>\
**Category:** Product Support\
**Tags:** email\
**Created:** [10월 30, 2024, 7:12오전 UTC](https://meta.discourse.org/t/email-to-custom-address-fails-lost-connection-after-ehlo/333553 "2024-10-30T07:12:32Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![ToddZ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/toddz/32/328350_2.png) [@ToddZ](https://meta.discourse.org/u/ToddZ)\
**Post date:** [10월 30, 2024, 7:12오전 UTC](https://meta.discourse.org/t/email-to-custom-address-fails-lost-connection-after-ehlo/333553/1 "2024-10-30T07:12:32Z")

</div>

카테고리에 'Custom incoming email address’가 설정되어 있습니다 – [CATEGORY]@forum.tasat.org

Gmail에서 해당 주소로 직접 이메일을 보내면 메시지는 정상적으로 처리되어 해당 카테고리에 도착합니다.

성공 시 mail-receiver 로그:

```plaintext
Oct 30 05:26:43 forum-mail-receiver postfix/smtpd[76028]: connect from mail-ot1-f46.google.com[209.85.210.46]
Oct 30 05:26:43 forum-mail-receiver postfix/smtpd[76028]: B5B78309A1E: client=mail-ot1-f46.google.com[209.85.210.46]
Oct 30 05:26:43 forum-mail-receiver postfix/cleanup[76035]: B5B78309A1E: message-id=<CAA0dvufnp4EsAjp9XxjjirzOvocEZn9qO1bbB2h+RhC-6GZP2w@mail.gmail.com>
Oct 30 05:26:43 forum-mail-receiver postfix/qmgr[98]: B5B78309A1E: from=<[NAME]@gmail.com>, size=3056, nrcpt=1 (queue active)
Oct 30 05:26:43 forum-mail-receiver postfix/smtpd[76028]: disconnect from mail-ot1-f46.google.com[209.85.210.46] ehlo=1 mail=1 rcpt=1 bdat=1 quit=1 commands=5
<23>Oct 30 05:26:43 receive-mail[76037]: Recipient: [CATEGORY]@forum.tasat.orgOct 30 05:26:44 forum-mail-receiver postfix/pipe[76036]: B5B78309A1E: to=<[CATEGORY]@forum.tasat.org>, relay=discourse, delay=0.57, delays=0.23/0.02/0/0.32, dsn=2.0.0, status=sent (delivered via discourse service)
Oct 30 05:26:44 forum-mail-receiver postfix/qmgr[98]: B5B78309A1E: removed

```

하지만 carrd.co의 랜딩 페이지에 있는 연락처 폼에서 동일한 내용으로 [CATEGORY]@forum.tasat.org에 메시지를 제출하면 처리되지 않습니다.

실패 시 mail-receiver 로그:

```plaintext
Oct 30 06:47:20 forum-mail-receiver postfix/smtpd[76057]: connect from a69-230.smtp-out.amazonses.com[54.240.69.230]
Oct 30 06:47:20 forum-mail-receiver postfix/smtpd[76057]: lost connection after EHLO from a69-230.smtp-out.amazonses.com[54.240.69.230]
Oct 30 06:47:20 forum-mail-receiver postfix/smtpd[76057]: disconnect from a69-230.smtp-out.amazonses.com[54.240.69.230] ehlo=1 commands=1

```

명백히 EHLO 명령은 "SMTP에 발신 호스트의 도메인 이름을 식별"하는 데 사용됩니다.

어디서부터 시작해야 할지 모르겠습니다. EHLO 실패의 원인은 무엇일까요? SES를 화이트리스트에 추가해야 하는 건가요..?

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_[View the full topic](https://meta.discourse.org/t/email-to-custom-address-fails-lost-connection-after-ehlo/333553)._