Skip to main content

Questions tagged [smtp]

Simple Mail Transfer Protocol is the protocol used for sending email.

0 votes
0 answers
11 views

How to apply Postfix milter *before* smtp_generic_maps for DKIM purposes?

My Postfix instance instance correctly signs outbound mail with DKIM when I set the myhostname parameter to be the domain I wish to send from, say domain1.com. The issue I have is I have multiple ...
BrownianBridge's user avatar
0 votes
1 answer
15 views

What format does a Postfix Milter use?

I am attempting to write a custom miller for postfix , but am not sure what format I need to use before I begin writing my logic. So far, I have postfix sending mail to a miller with: ...
user10709800's user avatar
0 votes
0 answers
42 views

Postfix Receiving Email issue

POSTFIX - DOVECOT - NODE JS - SMTP - RECEIVING_EMAIL I have completed the setup for sending email from my custom domain using the Postfix Smtp server. Now I need to receive the email from any mail ...
AIT DEV's user avatar
0 votes
0 answers
18 views

Your email is tagged as "does not exist" by the Sendgrid

Looking for help here guys i can't receive an email from them im using gmail. But here is there reply to me your email is tagged as "does not exist" by the Sendgrid. What is the root cause ...
Jayson Abalos's user avatar
0 votes
1 answer
41 views

Alpine Mail - use 2 smtp servers for my 2 email accounts

I have been using Alpine for a few days and have managed to retrieve my two email accounts @web.de and @gmx.de. They are displayed in the Folder List. I can read and delete Mails etc. Fine. But: How ...
Ingo Rodowsky's user avatar
0 votes
1 answer
84 views

TLS Certificate Verification Error

We have a WordPress website configured to send mail using smtp.office365.com via the WP Mail plugin, but can't currently send mail with SSL Verification enabled. Without verification, the email works ...
Kyudos's user avatar
  • 401
0 votes
0 answers
37 views

Unable to set up email clients with IMAP - on multiple emails and systems

I'm having trouble fixing my email client setups - it appears the connection keeps getting rejected by the server. I have an (ollld) arcor.de email address, that had been synced via IMAP to both ...
Giogina's user avatar
0 votes
1 answer
100 views

SMTP port listening for relay/submission

I have been reading the SMTP spec and other related RFCs (mainly 8314 & 6409) and can not wrap my head around it so I hope you guys can help me out. I'm trying to setup an SMTP server for testing ...
biohzrdmx's user avatar
0 votes
0 answers
201 views

Windows 11 network connection error. I think something with ssl/tls

I came across with the network problem on Windows Home 23H2. One day, my Outlook 2010 has break to receive letters. In the log, I got the message error 0x8004210A. I tried all the methods pointed here,...
Andrey Avakov's user avatar
0 votes
2 answers
173 views

Why is Postfix using a lookup table?

I am trying to send mail locally using Postfix. What I can't understand, is why a lookup table is being used. I am attempting a minimal Postfix build from source, so have omitted berkley DB support. ...
user10709800's user avatar
1 vote
0 answers
77 views

Why can't NTFY authenticate with MS Outlook?

First and foremost, Microsoft documentation advises these details for SMTP with outlook. I use this fine with other services. SMTP server name: smtp-mail.outlook.com SMTP port: 587 SMTP encryption: ...
MrChadMWood's user avatar
0 votes
1 answer
48 views

trying to send emails in bulk, but there is something wrong with my smtp configuration

I'm unemployed and looking for a job. Therefore I need to send emails to a lot of companies. This case is about unsolicited applications. The body of the email is the same, but the recipent is ...
Paco 2015's user avatar
0 votes
1 answer
93 views

Sendemail and others authentication fail: I’m getting invalid credentials provided

Im trying to use sendemail and sawks to send an email via SMTP of mail.com or yahoo.com or gmail (those are the ones I spent almost a day). They all are failing at authentication phase i.e. AUTH LOGIN....
Surepic 342's user avatar
0 votes
1 answer
57 views

Why does AWS SES close the connection when attempting AUTH LOGIN?

I am attempting to send a test email via AWS SES. I have my smtp endpoint and smtp credentials all set up. I am testing using the command openssl s_client -crlf -connect email-smtp.ap-southeast-2....
ZeunO8's user avatar
  • 101
0 votes
0 answers
227 views

OpenSMTPD from address rewrite

I am trying to use OpenSMTPD to re-write all instances of the from-address in an email header. Here's the scenario I'm trying to solve for... I have an email distribution list that various people ...
mikem's user avatar
  • 476

15 30 50 per page
1
2 3 4 5
40