# Mautic re-send of deferred delivery?

**URL:** <https://forum.mautic.org/t/mautic-re-send-of-deferred-delivery/10483>\
**Category:** Product Support\
**Created:** [May 8, 2018, 3:15pm UTC](https://forum.mautic.org/t/mautic-re-send-of-deferred-delivery/10483 "2018-05-08T15:15:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bulgin](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/bulgin/32/1001_2.png) [@bulgin](https://forum.mautic.org/u/bulgin)\
**Post date:** [May 8, 2018, 3:15pm UTC](https://forum.mautic.org/t/mautic-re-send-of-deferred-delivery/10483/1 "2018-05-08T15:15:48Z")

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In today’s email campaigns many receiving smtp servers will send out a deferred message or otherwise greylist a sending server to test if they are spam bots.

Does Mautic support the retry feature or is this always a function of the delivery agent such as Exim, Postfix, etc?

If it is a function of the delivery agent and we use an smtp server on our own domain which also hosts the Mautic server how would one setup the smtp login credentials for a local server?

I use phplist on other servers and it handles interaction with the localhost seamlessly. I’m a bit confused on how to get Mautic to talk to the _local_ smtp instance for sending and if credentials must also be served. My confusion is because I am familiar with connecting to an _external_ smtp server but everything I am speaking of above, is local.

Thank you in advance.

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**Author:** ![bulgin](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/bulgin/32/1001_2.png) [@bulgin](https://forum.mautic.org/u/bulgin)\
**Post date:** [May 8, 2018, 5:14pm UTC](https://forum.mautic.org/t/mautic-re-send-of-deferred-delivery/10483/2 "2018-05-08T17:14:16Z")

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I believe I discovered the answer: just use localhost as the smtp server in Mautic and then (in cpanel/WHM anyway) exim will do the reloading of deferred emails.

If that is not correct someone please pipe in and let me know, otherwise this has been resolved.

Thank you.

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**Author:** ![ahmadmushtaq](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/ahmadmushtaq/32/6397_2.png) [@ahmadmushtaq](https://forum.mautic.org/u/ahmadmushtaq)\
**Post date:** [December 4, 2021, 11:05pm UTC](https://forum.mautic.org/t/mautic-re-send-of-deferred-delivery/10483/3 "2021-12-04T23:05:31Z")

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I believe linux hosts have their own native spooling method for emails.